Instruction manual

166
Operation
Operating the ICU-1 with the ARRIFLEX 535 or 435
The ARRIFLEX 535 and 435 cameras can be programmed
with the RCU-1, the LCC or the CCU to perform simultaneous
frame rate and mirror shutter changes to compensate for
differeces in exposure during speed ramps.
To use the ICU-1 during a frame rate change on these
cameras, the mirror shutter must be programmed to remain
constant, i.e. kept at the same angle through the whole
frame rate change!
Setting a F-Stop
To open or close the iris:
• Push the OPEN or CLOSE key ➪ photo.
The lens motor will move the iris ring as long as one of
these buttons is pushed. If a button is pushed for a
long duration, the lens motor will increase the rate of
change. If the button is released, the speed of change
will be set back to the slower value.
Momentary Opening of the Iris (ZAP)
• To open the iris temporarily, push the zap key ➪ photo
located on the ICU-1 back side, underneath the
connectors.
The iris will remain open as long as the zap button is
pushed. When the zap button is released, the ICU-1
will return to exactly the same position it was in before
the zap button was pushed.
Note: This feature is disabled while the camera is running!
ICU-1 and Variable Primes
When using the ICU with the Variable Primes, make shure
that the iris ring does not move in the area between T-22
and CLOSE. An improper exposure would result.
BAT-LED
CAL-LED
SET F-STOP-LED
NON LINEAR-LED
POWER key (ON)
READY-LED
CAL key
F-STOP key
OPEN key
CLOSE key